In 2017, the second oldest Swiss watch brand, Favre-Leuba, celebrates its 280th anniversary with a groundbreaking watch. The Raider Bivouac 9000 is the first mechanical wristwatch capable of measuring altitudes of up to an incredible 9,000 meters above sea level.

The 48-mm titanium case houses an aneroid barometer, which allows the watch to indicate the elevation at a given point by reacting to the changing air pressure surrounding it. Drawing and learning from its own past, when Favre-Leuba was renowned for pushing boundaries and challenging frontiers, the brand continues the vision of its forefathers with the new model while paying homage to the namesake model from 1962. The iconic watch, which is today a collector?s piece, was worn by mountaineers, parachutists and adventurers and recognized for being the very first mechanical wristwatch capable of measuring altitudes of up to 3,000 meters. Inspired from its forefathers and using the same reliable technology, the engineers at Favre-Leuba have now made a tool capable of going three times higher. A difference in air pressure of just 0.7 bar, which indicates a change in altitude of 9,000 m, can be measured precisely by the specially engineered capsule housed in the Bivouac 9000.
The central red altimeter hand indicates altitude gain in 50-meter steps and goes up to 3,000 meters in one rotation; upon completing three such rotations, the subdial at 3 o’clock indicates the climb up to 9,000 meters. On this same subdia...